We found 9 dictionaries that define the word marathon runner:

General (8 matching dictionaries)

1. marathon runner: Collins English Dictionary
2. marathon runner: Vocabulary.com
3. marathon runner: Dictionary.com
4. The Marathon Runner: Wikipedia, the Free Encyclopedia
5. marathon runner: Rhymezone
6. marathon runner: FreeDictionary.org
7. marathon runner: Mnemonic Dictionary
8. marathon runner: TheFreeDictionary.com

Computing (1 matching dictionary)

9. marathon runner: Encyclopedia

(Note: See marathon_runners as well.)

Definitions from WordNet (marathon runner) ▸ noun:  someone who participates in long-distance races (especially in marathons) ▸ Words similar to marathon runner ▸ Usage examples for marathon runner ▸ Idioms related to marathon runner ▸ Wikipedia articles (New!) ▸ Words that often appear near marathon runner ▸ Rhymes of marathon runner ▸ Invented words related to marathon runner